The DT Swiss XR 331 rim provides the ultimate cross country experience with a 24mm wide rim profile in a lightweight package The rim bed is tubeless ready optimized to provide fast tire installation, a great tire fit and quick trouble-free tubeless setup You also have the option to run standard inner tubes The XR 331 is an excellent choice if you're looking for a lightweight race day rim that's also suitable for training The XR 331 rims all come packaged with a set of DT Swiss squorx Pro Head® nipples and PHR washers required for your wheel build Available in 28 or 32 hole Weight 340 g (including washers) Disc brake specific rim ERD 534 mm Outer width 24 mm Height 18 mm